"""
Copyright (c) 2024 Beijing Jiaotong University
PhotLab is licensed under [Open Source License].
You can use this software according to the terms and conditions of the [Open Source License].
You may obtain a copy of [Open Source License] at: [https://open.source.license/]

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.

See the [Open Source License] for more details.

Author: Yunzhou Tang
Created: 2024/09/30
Supported by: National Key Research and Development Program of China
"""


def fun(a:int=None,b:str=None):
    """
    fun
    
    :param a : aa
    :param b : bb   
    
    :returns none : 
    """

    print("----")


if __name__ == '__main__':
    fun()